Yo, can only offer inspiration for this project... two options based on magazine review of the group set
1. Bromwich Cyclone frameset plus Euclid groupset (as seen in “Bicycle Action” some time 1989-90
2. Chas Roberts “Phantom” frameset plus Euclid groupset (as seen in MBUK sometime 1990)
Option 2. probably more interesting , as the Roberts frameset review was testing the new Columbus Max OR tube set , and the Campag was a extra
Now this post is purely on memory, 1. Is certain 2. need to check references
Oh! there is an option (3) Velo Tout Terrain VTT featured a YETI Ultimate with Campag Euclid !
a combination of mtb plus french language enable me to not fail GCSE !
Am sure plenty of other options out there , enjoy the research process